Singh, Bhawani. <br/><br/>
Rock mass classification :  a practical approach in civil engineering / 
Bhawani Singh & R.K. Goel. 
 - 1st ed. 
 - Amsterdam ;  New York :  Elsevier,  1999. 
 - xiii, 267 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0080430139 
<br/><br/><label>LCCN: </label>99-232835 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering geology.<br/>Rocks--Classification.
<br/><br/><label>Subjects--Index Terms: </label>Kỹ thuật xây dựng Địa chất công trình Đá 
<br/><br/><label>LC Class. No.: </label>TA705  / .S5364 1999 
<br/><br/><label>Dewey Class. No.: </label>624.1/51  / SIN 1999